- Residents said they saw a man being led away by officers before more police officers arrived.

- Armed officers are at the property.

- The North East Counter Terrorism Unit said it recognises that 'local people may have concerns as a result of this activity'. A spokesman said: "We would ask people to remain alert but not alarmed and we are grateful for the assistance and understanding of people locally."

- The Royal Logistics Bomb Disposal Team was called to Chesterfield earlier this morning, in a move believed to form part of the terror operation.

- A house between the Spar store, on Sheffield Road, Whittington Moor, and the Whittington Moor roundabout, was raided.